CallConfirmWidget: track anchor's position

src/widget/callconfirmwidget.cpp

@@ -10,14 +10,12 @@
 #include <QRect>
 #include <QPalette>
 
-CallConfirmWidget::CallConfirmWidget(QWidget *anchor) :
-    QWidget(Widget::getInstance()),
+CallConfirmWidget::CallConfirmWidget(const QWidget *Anchor) :
+    QWidget(Widget::getInstance()), anchor(Anchor),
     rectW{130}, rectH{90},
     spikeW{30}, spikeH{15},
     roundedFactor{15}
 {
-    Widget* w = Widget::getInstance();
-
     setWindowFlags(Qt::SubWindow);
 
     QPalette palette;
@@ -36,12 +34,23 @@ CallConfirmWidget::CallConfirmWidget(QWidget *anchor) :
     connect(buttonBox, &QDialogButtonBox::accepted, this, &CallConfirmWidget::accepted);
     connect(buttonBox, &QDialogButtonBox::rejected, this, &CallConfirmWidget::rejected);
 
+    connect(Widget::getInstance(), &Widget::resized, this, &CallConfirmWidget::reposition);
+
     layout->setMargin(12);
     layout->addSpacing(spikeH);
     layout->addWidget(callLabel);
     layout->addWidget(buttonBox);
 
-    QPoint pos = anchor->mapToGlobal({(anchor->width()-width())/2,anchor->height()})-w->mapToGlobal({0,0});
+    setFixedSize(rectW,rectH+spikeH);
+    reposition();
+}
+
+void CallConfirmWidget::reposition()
+{
+    Widget* w = Widget::getInstance();
+    QPoint pos = anchor->mapToGlobal({(anchor->width()-rectW)/2,anchor->height()})-w->mapToGlobal({0,0});
+
+    // We don't want the widget to overflow past the right of the screen
     int xOverflow=0;
     if (pos.x() + rectW > w->width())
         xOverflow = pos.x() + rectW - w->width();
@@ -49,12 +58,12 @@ CallConfirmWidget::CallConfirmWidget(QWidget *anchor) :
 
     mainRect = {0,spikeH,rectW,rectH};
     brush = QBrush(QColor(65,65,65));
-    spikePoly = QPolygon({{(rectW-spikeW+xOverflow)/2,spikeH},
-                          {(rectW+xOverflow)/2,0},
-                          {(rectW+spikeW+xOverflow)/2,spikeH}});
+    spikePoly = QPolygon({{(rectW-spikeW)/2+xOverflow,spikeH},
+                          {rectW/2+xOverflow,0},
+                          {(rectW+spikeW)/2+xOverflow,spikeH}});
 
-    setFixedSize(rectW,rectH+spikeH);
     move(pos);
+    update();
 }
 
 void CallConfirmWidget::paintEvent(QPaintEvent*)
@@ -67,3 +76,9 @@ void CallConfirmWidget::paintEvent(QPaintEvent*)
     painter.drawRoundRect(mainRect, roundedFactor, roundedFactor);
     painter.drawPolygon(spikePoly);
 }
+
+void CallConfirmWidget::showEvent(QShowEvent*)
+{
+    reposition();
+    update();
+}

src/widget/callconfirmwidget.h

@@ -7,12 +7,16 @@
 #include <QBrush>
 
 class QPaintEvent;
+class QShowEvent;
 
+/// This is a widget with dialog buttons to accept/reject a call
+/// It tracks the position of another widget called the anchor
+/// and looks like a bubble at the bottom of that widget.
 class CallConfirmWidget : public QWidget
 {
     Q_OBJECT
 public:
-    explicit CallConfirmWidget(QWidget *anchor);
+    explicit CallConfirmWidget(const QWidget *Anchor);
 
 signals:
     void accepted();
@@ -20,15 +24,21 @@ signals:
 
 protected:
     virtual void paintEvent(QPaintEvent* event) override;
+    virtual void showEvent(QShowEvent * event) override;
+
+protected slots:
+    void reposition(); ///< Recalculate our positions to track the anchor
 
 private:
+    const QWidget* anchor; ///< The widget we're going to be tracking
+
     QRect mainRect;
     QPolygon spikePoly;
     QBrush brush;
 
     const int rectW, rectH;
     const int spikeW, spikeH;
-    const int roundedFactor;
+    const int roundedFactor; ///< By how much are the corners of the main rect rounded
 };
 
 #endif // CALLCONFIRMWIDGET_H

src/widget/widget.cpp

@@ -377,6 +377,8 @@ void Widget::resizeEvent(QResizeEvent *event)
 {
     Q_UNUSED(event);
     saveWindowGeometry();
+
+    emit resized();
 }
 
 QString Widget::detectProfile()

src/widget/widget.h

@@ -90,6 +90,7 @@ signals:
     void usernameChanged(const QString& username);
     void statusMessageChanged(const QString& statusMessage);
     void changeProfile(const QString& profile);
+    void resized();
 
 private slots:
     void onConnected();